It's kinda hard to describe exactly how the scene went. It's very different from the comic book though, that's for sure.

The skeletons do stand, but only once Indy and the rest left the room and well ehm. I don't really remember them standing up, they just were there, melted together to form 1 alien with skin and all. And then Cate kinda went up in fire and disappeared.

I really liked the scene. The alien skeletons looked great, the skin version a bit less. Still, Cate going up is about as Indiana as it could get.

Edit:

The drawings are pretty terrible. Comic book adaptations never really make up, but this doesn't even remotely capture the scene.